Three-dimensional tissue reconstruction and tracking of a diffuse reflectance spectroscopy probe for real-time tissue classification in upper gastrointestinal cancer surgery

Ioannis Gkouzionis; Scarlet Nazarian; Ara Darzi; Nisha Patel; Christopher Peters; Daniel Elson

doi:10.1117/12.2620518

24 May 2022 Three-dimensional tissue reconstruction and tracking of a diffuse reflectance spectroscopy probe for real-time tissue classification in upper gastrointestinal cancer surgery

Ioannis Gkouzionis, Scarlet Nazarian, Ara Darzi, Nisha Patel, Christopher Peters, Daniel Elson

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Proceedings Volume PC12146, Clinical Biophotonics II; PC121460D (2022) https://doi.org/10.1117/12.2620518
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

Cancers of the upper gastrointestinal (GI) tract remain a major contributor to the global cancer risk. This study uses a diffuse reflectance spectroscopic probe for tissue characterisation. An approach to reconstruct a dense 3D model of tissue surface from stereo optical videos is proposed. The reconstructed tissue model is used to aid histology correlation, and thus tissue classification. The extracted tissue depth information is combined with the 3D DRS probe position offering an enhanced augmented visualisation of the specimen. The recovery of 3D tissue structure and probe location will enable the accurate deployment of surgical guidance in minimal invasive surgery.

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Ioannis Gkouzionis, Scarlet Nazarian, Ara Darzi, Nisha Patel, Christopher Peters, and Daniel Elson "Three-dimensional tissue reconstruction and tracking of a diffuse reflectance spectroscopy probe for real-time tissue classification in upper gastrointestinal cancer surgery", Proc. SPIE PC12146, Clinical Biophotonics II, PC121460D (24 May 2022); https://doi.org/10.1117/12.2620518

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KEYWORDS

Tissue optics

3D modeling

Surgery

Cancer

Tissues

Diffuse reflectance spectroscopy

Optical tracking

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